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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.core.util

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.cougaar.core.util .UID

UID

final public class UID implements Externalizable,Comparable(Code)

A globally Unique object IDentifier generated by the org.cougaar.core.service.UIDService .

Although the details of this implementation are subject to change, developers may want to know more about the design to aid debugging: UIDs are currently implemented as an "AGENT/COUNTER" pair, where the initial COUNTER is the JVM startTime.

Compare to java.rmi.server.UID , which can block to prevent the COUNTER from growing faster than one-per-millisecond. Also note that it may be better to use a JVM-instance-specific OWNER (e.g. IP_ADDR+JVM_PID) instead of the AGENT, in case duplicate agents are created.

Constructor Summary
public	UID()
public	UID(String uid)
public	UID(String owner, long id)

Method Summary
public int	compareTo(Object other)
public boolean	equals(UID other)
public boolean	equals(Object other)
public long	getId()
public String	getOwner()
public String	getUID()
public int	hashCode()
public void	readExternal(ObjectInput in)
public String	toString() Convert a UID into a String.
public static UID	toUID(String uid) Parse the given String into a UID object useful for doing searches and comparisons.
public void	writeExternal(ObjectOutput out)

Constructor Detail

UID
public UID()(Code)
	No argument constructor is only for use by serialization!

UID
public UID(String uid)(Code)

UID
public UID(String owner, long id)(Code)

Method Detail

compareTo
public int compareTo(Object other)(Code)

equals
public boolean equals(UID other)(Code)

equals
public boolean equals(Object other)(Code)

getId
public long getId()(Code)

getOwner
public String getOwner()(Code)

getUID
public String getUID()(Code)

hashCode
public int hashCode()(Code)

readExternal
public void readExternal(ObjectInput in) throws IOException(Code)

toString
public String toString()(Code)
	Convert a UID into a String. One should not assume a readable format for this String, or that it has a guaranteed format! See Also: UID.toUID(String)

toUID

public static UID toUID(String uid)(Code)

Parse the given String into a UID object useful for doing searches and comparisons.

The String's format should match UID.toString().

There is no guarantee that this UID will be valid or has been assigned to an Object in the society.
See Also: UID.toString()

writeExternal
public void writeExternal(ObjectOutput out) throws IOException(Code)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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